The AutoLink AL329 is the most advanced next-generation code reader that is compatible with 1996 and Newer OBD-II compliant vehicles featuring the unique patented One-Click I/M readiness key color display and built-in speaker. The AL329 is truly the ultimate in ease and affordability, enabling users to verify repairs, road test, check State Emission Monitor Status, and solve basic engine & drivability problems. It eliminates drive cycle guesswork by notifying the driver with color-coded LEDs, audible tone, and dynamic all-in-one I/M readiness status.